Title: [Plugin: Query Posts] Thumbnail error message
Last modified: August 19, 2016

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# [Plugin: Query Posts] Thumbnail error message

 *  [Sam Steiner](https://wordpress.org/support/users/magganpice/)
 * (@magganpice)
 * [15 years, 6 months ago](https://wordpress.org/support/topic/plugin-query-posts-thumbnail-error-message/)
 * I am using the newest WordPress 3.0.1 and BuddyPress. This Query Posts plugin
   works fine as long as the thumbnail option is switched off. If I switch it on,
   following error message appears:
 * Fatal error: Call to undefined function the_post_thumbnail() in /……../wp-content/
   plugins/query-posts/widget-query-posts.php on line 166

Viewing 2 replies - 1 through 2 (of 2 total)

 *  [imsoper](https://wordpress.org/support/users/imsoper/)
 * (@imsoper)
 * [15 years, 6 months ago](https://wordpress.org/support/topic/plugin-query-posts-thumbnail-error-message/#post-1671170)
 * It probably isn’t working because the theme you’re using doesn’t have thumbnails
   enabled.
 *  [imsoper](https://wordpress.org/support/users/imsoper/)
 * (@imsoper)
 * [15 years, 6 months ago](https://wordpress.org/support/topic/plugin-query-posts-thumbnail-error-message/#post-1671171)
 * Check out the readme.html file that comes with the plugin, there is a section
   that talks about post thumbnails.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘[Plugin: Query Posts] Thumbnail error message’ is closed to new replies.

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## Tags

 * [thumbnails](https://wordpress.org/support/topic-tag/thumbnails/)

 * 2 replies
 * 2 participants
 * Last reply from: [imsoper](https://wordpress.org/support/users/imsoper/)
 * Last activity: [15 years, 6 months ago](https://wordpress.org/support/topic/plugin-query-posts-thumbnail-error-message/#post-1671171)
 * Status: not a support question